Slipper



FIG. 1 is a top plan view of the slipper embodying my design;

FIG. 2 is a side elevational view of the slipper as shown in FIG. 1; and,

FIG. 3 is a bottom plan view of the slipper as shown in FIG. 1. 

I claim the ornamental design for the slipper, as shown and described. 